Amplifier, Physiological Signal

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Facility	Where	Also makes	Recorded by
HTHi Tech Electronic Manufacturing CORP	Oceanside, CA	Brush, Dermabrasion, Powered · Electrode, Cutaneous	federal registry
Intelligent Hearing Systems CORP	Miami, FL	Audiometer · Cable, Electrode · Electrode, Cutaneous+4 more	federal registry
Blackrock Microsystems, INC	Salt Lake City, UT	cerebus · Conditioner, Signal, Physiological · Electrode, Cortical+7 more	federal registry
Cadwell Laboratories INC	Kennewick, WA	Cable, Electrode · Device, Galvanic Skin Response Measurement · Device, Nerve Conduction Velocity Measurement+21 more	federal registry

Federal registry means a federal dataset — an FDA device or drug listing, a TTB permit, a federal award — records this product against the facility or its company. It is not an approval of anything by anyone. Company website means we read it from the company’s own site. Company-provided means the verified owner of a claimed page added it: a claimed page may add products, and every one it adds is marked that way here.